Meaning
Running on two phasing
Causes
a) Defective contacts at starter's isolator or contactor
b) 1 No. power fuse open-circuit
c) Wiring to one phase open-circuit
d) Loose connection, loose bolts.
Results
Two sets of windings are overloaded
Prevention
a) Ensure starters are well serviced
b) Correct size oE power fuse is being used.
c) Ensure all screws are tightened.
d) Install electronic phase breaking relay.
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